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TIL 9 of the 10 most common birthdays in the world are in September, with conception happening in the third or fourth week of December.

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gMvw8 TIL that the Belize Barrier Reef is No Longer on UN’s Endangered List
DMaD TIL that Israel-related animal conspiracy theories exist in some countries. Sharks, vultures, boars, rats, and dolphins are among the animals Israel allegedly uses against others.
GYrj TIL until the Great Depression, a man could be sued for monetary damages if he broke off an engagement; if he’d already had sex with his fiance, damages were “greatly increased.” (Oh, and guys, we have De Beers to thank for the “two months salary on a ring” expectation.)
LQgeQ TIL the length of the great wall of China is 21,196 km, earth’s circumference is 40,075 km. so Great Wall of China goes half way around the world if it was in a straight line
KOeXB TIL that in the 1930s, the first pregnancy tests were done through injecting a woman’s urine into an infantile mouse, which would then be dissected so its ovaries can be inspected. If the woman was pregnant, the mouse would show signs of ovulation.